Siemens SINAMICS G120D Operating Instructions Manual page 170

Advanced commissioning
8.9 Motor holding brake
Commissioning a motor holding brake
Load can fall if the "Motor holding brake" function is incorrectly set
For applications with a suspended load, such as cranes and elevators, there is a danger to life
if the "Motor holding brake" function is not completely set or is incorrectly set.
• When commissioning the "Motor holding brake" function, secure any suspended loads, e.g.
• Set the "Motor holding brake" function according to the following description.
• After commissioning, check that the motor holding brake and the motor control function
• For applications involving suspended loads, we recommend that you use vector control
Requirement
The motor holding brake is connected to the converter.
Procedure
1. Set p1215 = 1.
The "Motor holding brake" function is enabled.
2. Check the magnetizing time p0346.
The magnetizing time must be greater than zero. The converter assigns the magnetizing time
when it is being commissioned.
3. Find out the mechanical opening and closing times from the technical data of the motor
holding brake.
– Depending on the brake size, brake opening times lie between 25 ms and 500 ms.
– Depending on the brake size, brake closing times lie between 15 ms and 300 ms.
4. Set the following parameters in the converter suitably for the mechanical opening and
closing times of the motor holding brake:
– p1216 ≥ mechanical opening time of the motor holding brake
– p1217 > mechanical closing time of the motor holding brake
5. Switch on the motor.
168
WARNING
by applying the following measures:
– Lower the load down to the floor.
– Secure the dangerous area so that nobody can inadvertently enter it.
reliably.
with an encoder.
Converter with the control units CU240D-2
Operating Instructions, 10/2020, FW V4.7 SP13, A5E34262100B AH